[Rev 01] RFR: 8234194: [TEST_BUG] Reenable few graphics unit tests

[Ambarish Rapte]

The pull request has been updated with additional changes.

----------------

Added commits:
 - e7856f6e: reenable some more tests and fix review comment

Changes:
  - all: https://git.openjdk.java.net/jfx/pull/39/files
  - new: https://git.openjdk.java.net/jfx/pull/39/files/5df00884..e7856f6e

Webrevs:
 - full: https://webrevs.openjdk.java.net/jfx/39/webrev.01
 - incr: https://webrevs.openjdk.java.net/jfx/39/webrev.00-01

  Issue: https://bugs.openjdk.java.net/browse/JDK-8234194
  Stats: 14 lines in 3 files changed: 6 ins; 3 del; 5 mod
  Patch: https://git.openjdk.java.net/jfx/pull/39.diff
  Fetch: git fetch https://git.openjdk.java.net/jfx pull/39/head:pull/39

PR: https://git.openjdk.java.net/jfx/pull/39